5.0V Electrical Characteristics
Unless otherwise specified, all limits are guaranteed for T
A
= 25°C, V
DD
=
5.0V, V
SS
= 0V, SD = 0V, C
FLY
= 5 µF, C
RES
= 22 µF, C
OUT
= 22 µF. Boldfacelimits apply at temperature extremes (Note 5).
Symbol
Parameter
Conditions
Min
(Note 6)
Typical
(Note 7)
Max
(Note 6)
Units
V
OUT
Output Voltage
I
OUT
= 0 mA
−0.242
−0.251
−0.233
−0.219
−0.209
V
I
OUT
= −20 mA
−0.242
−0.251
−0.226
−0.219
−0.209
V
R
Output Voltage Ripple
I
OUT
= −20 mA
4
mV
PP
I
S
Supply Current
No Load
60
103
135
240
μ
A
I
SD
Shutdown Supply Current
SD = V
DD
20
nA
η
POWER
Current Conversion Efficiency
−5 mA
≤
I
OUT
≤
−20 mA
98
%
η
POWER
Current Conversion Efficiency
I
OUT
= −5 mA
98
%
t
ON
Turn On Time
I
OUT
= −5 mA
200
μ
s
t
OFF
Turn Off Time
I
OUT
= −5 mA
700
μ
s
t
OFF CP
Turn Off Time Charge Pump
I
OUT
= −5 mA
11
μ
s
Z
OUT
Output Impedance
−1 mA
≤
I
OUT
≤
−20 mA
0.26
0.8
1.3
Ω
I
O_MAX
Maximum Output Current
V
OUT
< − 200 mV
−35
mA
f
OSC
Oscillator Frequency
91
kHz
V
IL
Shutdown Input Low
2.55
1.95
V
V
IH
Shutdown Input High
2.8
3.25
V
I
C
Shutdown Pin Input Current
SD = V
DD
50
pA
Load Regulation
0 mA
≤
I
OUT
≤
−20 mA
0.14
0.6
0.85
%/mA
Line Regulation
3V
≤
V
DD
≤
5.25V (No Load)
−0.2
0.29
0.7
1.1
%/V
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2:
Human Body Model, applicable std. MIL-STD-883, Method 3015.7. Machine model, applicable std JESD22–A115–A (ESSD MM srd of JEDEC). Field
induced Charge-Device Model, applicable std. JESD22–C101–C. (ESD FICDM std of JEDEC).
Note 3:
The maximum power dissipation is a function of T
J(MAX)
, θ
JA
, and T
A
. The maximum allowable power dissipation at any ambient temperature is
P
D
= (T
J(MAX)
- T
A
)/ θ
JA
. All numbers apply for packages soldered directly onto a PC board.
Note 4:
Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating
of the device such that T
J
= T
A
. No guarantee of parametric performance is indicated in the electrical tables under conditions of internal self-heating where
T
J
> T
A
.
Note 5:
Boldface limits apply to temperature range of −40°C to 125°C
Note 6:
All limits are guaranteed by testing or statistical analysis.
Note 7:
Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary over time and will
also depend on the application and configuration. The typical values are not tested and are not guaranteed on shipped production material.
3
www.national.com
LM7705
